Edwaed ellingen



TOv ALL WHOM IT MAY OONCERN:

@uiten gisten, germi @titre Letters Patent No. 81,885, dated September8, 1868.

` IMPROVED corrIN.

tite tlgemrlt rtfemh tu in their etters atsnt tnt makig gaat xii-ttesam.

Be it known that I, EDWARD ELLINGEN, of Mineral Point, in the countyofiIowa, in the State of Wisconsin, have invented a new and improvedMethod and Plan of Making Air-Tight Collins both of metal and wood;

and I do hereby `declare that the following isa ful'l and exactdescription thereof, reference being had to the4 accompanying drawings,and to the letters of reference marked thereon. 1

Figure I representsa vertical longitudinal section of a'wooden coilin,showing my improvements applied theretorandl' l Figure 2 a transversesection of the rubber-packing, showing means for: its application toametallic coin. Similar-'letters oirefercneefiridicatecorrespondigpartst. A AThe nature of Vmy invention consists in 4makingwood coins as follows First, coat the inside of the .coin with animpervious composition or cement, made of resin andtlard, or any greaseoroil, mixed in suitable proportions.

Second, attach to the inner edge of the lid of the coti'in, by glue orother means, a strip or h'elt of elastic rubber, made of India rubber,and represented in the 'drawing at A A. i

In making metallic coins, fasten thestrip of rubber in the same place asin the wood collins, but fasten the rubber on the lid by means ofsoldering with zinc. i

The shape is represented by B and C in the drawing. B is ,zincf l C 'isrubber! 4 To enable others skilled in the art to make and use myinvention, I will proceed to describe its construction and operation. A

I construct my wood coins in the lusual manner; thenmake my coating ofrosin and lard, mixed in suitable proportions, and put-it on the insideof the coliin, while the composition is hot, with a brush, and

smooth it with a. hot iron; .then attach the rubber to the inner edgeofthe lid, by glue or other means, then screw on the lid.

In metallic coftns, I solder the rubber on in the same place as I attachit in the wood cotfms.

I solder with zinc or other suitable metal. i

What I claim as my invention, and desire to secure by Letters Patent,is-

The colrin, coated upon the inside with a composition impervious tomoisture, 'as described, and rendered -air-tight by the India-rubberpacking, b, let into theunder surface of the lid, and held in place bythe metallic strip B, as herein set forth and shown.

Dated, June 4, 1868. EDWARD ELLINGEM- Witnesses:

ALEX. WILSON, Gao. S. Pnsrr.

